Let's check out the performances of the 2016 Grammy Awards. I loved Adele's performance of All I Ask. Even if it wasn't her finest. There was some sound issues but it is still amazing. Adele even tweeted the following: 
The piano mics fell on to the piano strings, that's what the guitar sound was. It made it sound out of tune. Shit happens. X 
Check here the winners' list.

Adele — “All I Ask”

Taylor Swift — “Out Of The Woods”

The Weeknd — “Can’t Feel My Face”/”In The Night”

Carrie Underwood & Sam Hunt – “Heartbeat”/”Take Your Time”

Andra Day & Ellie Goulding —“Rise Up” / “Love Me Like You Do”

Lionel Richie Tribute with Demi Lovato, John Legend, Meghan Trainor, Luke Bryan, Tyrese Gibson & Lionel Richie

Little Big Town — “Girl Crush”

Stevie Wonder & Pentatonix — Maurice White Tribute

Tori Kelly & James Bay — “Hollow”/”Let It Go”

Kendrick Lamar — “The Blacker The Berry”/”Alright”/”Untitled 3″

Justin Bieber with Diplo & Skrillex — “Love Yourself”/”Where Are U Now”

David Bowie Tribute — Lady Gaga with Nile Rodgers

B.B. King Tribute — Chris Stapleton, Gary Clark Jr. & Bonnie Raitt